Gearing.



PATENTED JAN. 21, 1908@ R. DE WALBREUZE.. GEARIN G. Arrmouzol Prim nu s1, '1901.

Urrrrnn srnfrnsy PAENT orf-ion ROBERT DE VALBREUZE, or LEVALLOIS-PERRET,FRANCE, Assrenon To SOCIT DE oONsTRUOT'IoNs DE VHiOULEs a CORPORATION' or fFRAucn-a y AUTOMOBILES, OF LEVALLOIS-PERRET, FRANCE,

Gemine.

- Specification-of Letters Patent.

Patented Jan. 21, 190s.

' Adriving ',wheels'; andihas Ifor its Object to group such a'manneras to occupy a'miniscrew-threaded.

"eren combine' thefsaid mechanisn'i ina single I 1"'had"totheaccompanying drawing which illustrates'A in sectional elevation a transmission gear inaocordance with this ihrentiorl.`

Referring to they drawingsf1 denotesI a motor which drives ,the main shaft Siin any 'suitablefj vvmanner. Upon the shaft 8 is keyedfa' clutch member 2 in the form o f a frictionl` jcone. v The other clutch member whichjis' al'sofinfthe form of africtioncone is indicated by .the reference character 3 and is mounted upon la 'square shaft 4. The main shaft'S 'extends through a casing 7` and hasthe end which" rojects from said casing l l :Libunted upon the main shaft Sis the vs 'Jare'shaft 4, the latterserving asan intermediate' shaft between the main shaft and acounter-shaft to be hereinafter referieftoj.l The shaft 4 is hollow throughout its Ientire lengthandlserves for the receptionof a clutch s kring `5 which is adjusted throughfthe medium Vof a 'disk 6 arrangedi upon the screw-threaded end of the main shaf-t 8,v adapted to be engaged by a nut 6a; The disk 6 'bears against oneextremity ofjthe spring 5, while the`y other ex'- tremity of said s Vring bearsagainsta disk 6b formed'integra with thel friction cone 3. By such 'an arrangement lthe clutch spring is lodged entirely within the shaft 4,' which permits. 'Offala'rge economy of s ace and enables thecasing 7 to be arrangerl in close proximity to lthe clutch. Furthermore, as the means for adjusting the spring .5 is positioned exteriorly of the casing 7 it enables the convenient adjustment of the'said spring' membersf2 `and 3 are separated by any suitablemeanazfor example, a lever 9 connected with the operating pedal of the vehicle and engaging the hub 9a of the friction cone 3.

The 'casing'. 7 provides a means for housing when' occasion so requires. -The clutch 55 the speed change gear mechanism and also l thedliferential gear mechanism. The speed changegear, by way of example, is shown as consistingof a pair of pinionsjdl), 11 anda pair lof gear-.wheel slO. and 11. Thepinions '10, l1 areof different diameters. withurespect to each other and the gear wheels -10 and 11 fare ,of dilerent diameters with respect to each other. The, pinons, 10 and' l1 form what maybe termed a slidingtrain. and are suitably connected together and arranged on ithesquare shaft 4. The pinions l0,and 1l arer'controlled in a knownmanner by means of an ordinary fork and are caused; to engage, respectivelyfwith the gear wheels-10 and 1'1 whichV are` connected with l a sectional counter-shaftl2 The latter extends through the casing 7 and the sections thereof are'connected together through the medium of a differential gear 13 of known construction,

- the gearbeing arrangedwithin the casing 7.

The two extremities yoi' the counter-shaft 12 project from the casing7 and carry toothed plmons by means of which the motive power 1sY transmitted to the drivinglwheels of the Vehicle in a known manner.

What l claim is- 11 `A transmission gear for motor vehicles comprising a casing, ashaft extending therethrough, a square shaft surrounding` the driving shaft, a clutch member rotating with the'driving shaft, a slidable clutch member mounted u on saidsquare shaft and adapted to frictiona Iyengage the other clutch member, a spring interposed between the shafts andbearing against said slidable clutching -member-,a counter-shaft formed of two sections journaled in and extending through said casing, a differential gear mounted in the casing and connecting the -sections of the counter-shafttogether, a pair of gear wheels arranged'within the casing :and connected with the `co'unter-shaft,` and a plurality of slidable pinions carried by the square'shaft and adapted to engage with said gear'wheels. 2. A- transmission gear for motor vehicles comprising a casing, a shaft extending therethrough, a square shaft surrounding the drivin shaft, a clutch member rotating'with the driving shaft, a kslidable clutch member mounted 11p-pn said square shaft and adapted to frictiona y engage the other clutch member, a spring interposed between the shafts and bearing against said siidable clutch 1nember, a counter-shaft formed of two sections journaled in and extending through said caslng, a differential gear mounted in the casing and lconnecting the sections of thecounterengage with said gear wheels, and means arvshaft together, a pair of gear wheels arranged within the casing and connected with the counter-shaft, a' plurality `of slidable pinions carried by the squareL shaft and adapted t0 "ranged exteriorly ofthe casing and engaging the driving shaft for adjusting the tension of said spring.

3. A transmission gear for motor vehicles comprising a driving shaft, a transmission shaft surrounding the driving shaft, a casing through which extend the transmission and shaft together, and a speed change gear arranged within the casing'and having certain of its elements carried by the counter-shaft and the other of its'elements carried by the transmission shaft. 3 5 4. A transmission ,gear for' motor vehicles comprising a driving shaft, a transmission shaft surrounding the driving shaft, acasing through which extend the transmission and the driving shaft, a clutch arranged exte- 40 rioriy'of the casing and in close proximity thereto, said clutch constituting means for connecting theV transmission shaft Ito the driving shaft, a sectional counter-shaftex tending through the casing, -a dierential gearing for connecting the sections of the counter-shaft together, a speed change gear arranged within the "casing and having certain of its elements carried by the countershaft and the other of`its elements carried by the transmission shaft, a'clutch spring interposed between the transmission and driving shafts, said spring bearing against one of the elements of the clutch, and means upon the driving shaft for adjusting the tension ofsaid'- 55 spring, said means arranged exteriorly of thel easing. l A In testimony whereof I have hereunto Iset my hand in presence of two subscribingpwitnesses.

` ROBERT DE VALBREUZE. Witnesses:

EMILE KLoTz,` i .WARD RIVAUD. 

